>>> # initialise a dictionary with the keys “city”, “name”, “food”
>>> person1_information = {'city': 'San Francisco', 'name': 'Sam', "food": "shrimps"}
>>> # delete the key, value pair with the key “food”
>>> del person1_information["food"]
>>> # print the present personal1_information. Note that the key, value pair “food”: “shrimps” is not there anymore.
>>> print(person1_information)
{'city': 'San Francisco', 'name': 'Sam'}
dict = {'an':30, 'example':18}
#1 Del
del dict['an']
#2 Pop (returns the value deleted, but can also be used alone)
#You can optionally set a default return value in case key is not found
dict.pop('example') #deletes example and returns 18
dict.pop('test', 'Key not found') #returns 'Key not found'
# empty dictionary
dictionary = {}
# lists
list_1 = [1, 2, 3, 4, 5]
list_2 = ["a", "b", "c", "d", "e"]
# populate a dictionary.
for key, value in zip(list_1, list_2):
dictionary[key] = value
# output
print(dictionary)
# Item to delete
item_1 = "c"
# Delete item from dictionary - based on values specified
for key, value in dictionary.items():
if value == item_1:
dictionary.pop(key)
break
print(dictionary)
# The pop() method can accept either one or two parameters:
# The name of the key you want to remove (mandatory).
# The value that should be returned if a key cannot be found (optional).
dictionary.pop(key_to_remove, not_found)
# Python code to demonstrate
# removal of dict. pair
# using del
# Initializing dictionary
test_dict = {"Arushi" : 22, "Anuradha" : 21, "Mani" : 21, "Haritha" : 21}
# Printing dictionary before removal
print ("The dictionary before performing remove is : " + str(test_dict))
# Using del to remove a dict
# removes Mani
del test_dict['Mani']
# Printing dictionary after removal
print ("The dictionary after remove is : " + str(test_dict))
# Using del to remove a dict
# raises exception
del test_dict['Manjeet']